nasch



(No Model.) 7 Sheets-Sheet 1.

1. NASGI-I. MACHINE FOR SEWING BOOKS.'

No. 558,832. Patented Apr. 21, 1896.

llifizavses ANDREW B GHAHAMJMOTO LIVHO WASNIMGTOMDC (No Model.)7'Sheets-She et 2.

- I. NASCH.

MACHINE FOR SEWING BOOKS.

No. 558,832. Patented Apr. 21, 1896..

AN DREW EGRANAM. PHOTO-UNOWASNINGTON.D C

(No Model.\ 7 SheetsSl1eet 3.

I. NASGH. MACHINE .FOR SEW'ING BOOKS.

No. 568,832. Patented Apr. 21, 1896.

AN D REW BJRAHAM. PHOTOUTHQWASHINGTON. D C

(No Model.) Sheets-Sheet 4. I. NASOH;

MACHINE FOR SEWING BOOKS.

No. 658,832. Patented Apr. .21, 1896.

ANDREW H GRAHAMZFHOTO-UMQWASMIN MUN-J llv (No Model.) v7 Sheets-Sheet 5.

I. NASUH. 1

MACHINE FOR SEWING BOOKS.

No. 558,832. PatentedApr. 21,1896.

ANDREW EGRAIUWI, PHOTO-UTIIQWASNINGTDNJ D.

(N0 Mqdel.) v 7 Sheets-Sheet 6.

, I.. NASGH.

MACHINE FOR SEWING BOOKS.

No. 558,832. Patented A r; 21, 1896'.

.PMOTO UTMO WASHWETUNJIC (No Model.) I 7 sheets sheet 7.

LNASGH. MACHINE FOR SEWING BOOKS.

No. 558,832. Patented Apr. 21, 1896.

AN DREW B GRAHAM. PHUTO'LI'MQWMWNGTDK IIC.

lhviTnn STATns ISIDOR NASOH, OF LONDON, ENGLAND.

MACHINE FOR SEWING BOOKS.

SPECIFICATION forming part of Letters Patent No. 558,832, dated April21, 1896.v

Application filed July 5,1892. Serial No. 438,914. (No model.) Patentedin England June 10, 189L110. 9,806, and in Germany September 1,1892,No.64,201.

To aZZ whom it may concern.-

Be it known that I, ISIDOR NASCH, a subject This invention has beenpatented to me in Great Britain on the 10th day of June, 1891, No.9,806, and in Germany on the 1st day of September, 1892, No. 64,201.

By this invention I produce a machine for sewing together the sheets orsignatures of books which is exceedingly simple in its construction, ofvery great rapidity in its action, and of small cost of manufacture. Itis easy of operation and. adjustment, durable, and highly efficient inservice. The work effected by it is solid, strong, and regular, and themachine is adapted for use in binding together the sheets or signaturesof books of any size and thickness.

According to this invention 1 make use of any convenient number ofneedles, mounted each in separate needle-bars. These needlebars workindependently of one another and are each attached to one end of an armor lever, the other end of which lever is pivoted upon a carrying-shaft.A reciprocating n10- tion is imparted to the needles by means ofeccentrics or cams acting against the arms or levers aforesaid andoperated by hand, treadle, or power. In front of the needleplate I havetwo loopers, which have a lateral traverse from right to left, and viceversa, and which each take a thread from the eye of one needle to thehook of another. In the drawings accompanying I have shown three needlesas being formed with eyes and two with hooks at their points; but thenumbers of each may be varied to suit requirements. After the thread istaken from the eye of one needle by the looper to the hook of anotherneedle it is held by the latter till another thread is brought to it,when the two loops are interlocked and the stitch is formed; and inorder that this invention may be fully understood and readily carriedinto effect I will proceed to describe same, with reference to theaccompanying drawings, in which similar letters and numerals ofreference indicate like parts in all the figures.

Figure 1 shows in plan my improvements as applied to a machine employingthree threads, though it must be understood that any number of threadsdesired may be employed with a necessary alteration in the number of theneedles in accordance therewith. Fig. 2 is an end elevation. Fig. 3 is aback or rear elevation, and Fig. 4 is an inverted plan, of the machine.Fig. 5 is an enlarged detail view illustrating the guides in which thetable travels. Fig. 5 is a side elevation of the part shown in Fig. 5.Fig. 6 is a detail view in side elevation of the central lever 102. Fig.7 is a detail of a portion of the plate 2 Fig. 8

is a diagrammatic view showing the needles and loopers in the positionthey assume at the beginning of the operation. Fig. 9 is a similar Viewshowing two of the needles and the loopers in the position assumed inthe act of sewing the first signature. Fig. 10 is a similar view showingthe needles retracted and the hooks advanced and the loopers moved tothe left. Fig. 11 shows the hooks retracted and the loopers returned tonormal position ready for sewing the second signature. Fig. 12 shows thesecond set of needles advanced in the act of sewing the secondsignature. Fig. 13 shows the hooks advanced and the loopers advanced tocarry the thread to the hooks. Fig. 1a shows the needles returned tonormal position at the completion of the sewing of the second signature,and Fig. 15 shows a series of signatures which have been sewed accordingto the present invention.

a are the needles; b,the needle-bars in which the needles are mounted.

c are the arms or levers attached at oneend to the needle-bars b andhaving the other end working loosely upon the carrying-shaft d.

e are the cams which, acting against the levers or arms 0, impart motionin one direction thereto.

f is the driving-shaft and upon which the cams e are mounted. Springs 9may conveniently, as shown, be fitted for causing the return motion, orother cams may be arranged for this purpose, if desired.

. The driving-shaftf may be operated in any convenient manner. In thedrawings herewith it is shown as receiving its rotary motion from thedriving-wheel it through intermediate shafts 1' 7t and bevel-gears hit.This motion will be seen more particularly upon reference to Fig. 4 ofthe drawings. The driving-wheel h is carried upon one end of the shaft1', the other end of which shaft is provided with the bevel-wheel Z, theteeth of which latter take into the teeth of a correspondingbevel-wheelfitted upon the countershaft k. At the end of the counter-shaft7c is fitted another bevel-wheel on, working in the bevel-wheel, asshown, carried upon the driving-shaft f. The loopers n are carried byrods or bars 0, sliding in bearings p. The outer ends of these rods orbars 0 are connected by cross-levers q to shafts r, which have a lateralmotion communicated to them by means of levers and rods 1" r operatedfrom the shaft in the following manner:

Particularly referring to Figs. 2 and 4, it will be observed there arecams r fitted upon the shaft 70. In revolving, these cams come incontact with the studs 1' upon the levers r These levers r are pivotedat one end on the shaft 0", carried in the standard a, and are eachattached at other end to a pitman r and communicate motion to suchpitmen upon the impact of the cams r The levers or arms r are also andat same time actuated as the pitmen r are connected to them. Theselevers r are pivoted at r and have their other ends attached to theshafts r and give motion to these latter in their turn. Through them thelooper-carrying bars 0 are actuated, being connected to same by thecross-levers q aforesaid. Springs r are shown as being provided for thereturn motion of the levers and loopercarrying bars.

Attached to the rod or bar 0 is a collar 5, having a tailpiece s, whichis depressed at each revolution of the driving-shaft by means of thelever 25, which is pivoted at t and is acted upon by a cam u, fittedupon the driving-shaft f. This causes the looper n to be depressedslightly as it is placing the thread upon the hook of the needle, so asto carry said thread well within the jaws of the hook. A spring 8 (shownparticularly in Fig. 3) acting upon the aforesaid tailpiece s of thecollar 8 causes the looper to resume its original position. To moreeasily disengage itself of the loop or stitch, the hook-needle is causedto partly revolve. This is accomplished by forming teeth at the end ofthe needle-bar b, which take into a rack n, which has a reciprocatingmotion given to it through the lever o, springr and cam 0 (See Figs. 3and 4.) The cam 41 in revolving abuts against the stud c on lever o andcarries same forward, and this lever being attached at its upper end tothe rack '11 causes same to advance. The spring '0 draws it back whenthe cam becomes free of the stud. To take up the slack of the thread, Iprovide threadcontrollers consisting of the arms 10, pivoted at w. Cams10 fitted upon the driving-shaft f, are revolved by the latter and takeagainst the pivoted arms 10 and cause them to rise and lift the arms 10at the proper timesi. 6., at each revolution of the driving-shaft.

00 is the bed or stitch-board of the machine, which is loweredautomatically at each revolution of the main shaft by means of ascrewcolumn 00, around which engages a threaded collar 5, attached tothe stitch-board. The column is caused to revolve by providing it with atoothed portion 00 (see dotted lines, Fig. 1,) which is engaged by apawl acfimounted on an arm 00 which is journaled on the column .r andvibrated by suitable connections from the cam x on shaft k, and y thefeeding-table sliding between guides 3 Upon this table y the sheet orsignature is placed and is carried by it to the stitch-plate y.

z are spools from whence the thread is taken through the tensions z andthrough the aperture .2 in guard or face plate 2 (this latter isprovided with slots, through which the thread-controlling arms are freeto work,) then through the eye z, thence it is taken to thethread-controlling arm 10, and then downward, passing through the eyeand on through the eye of the needle.

In the operation of the machine the signature to be sewed is broughtinto the position shown by dotted lines A in front of the needles, as inFig. 8. On the further movement of the machine the needles 1 and 3advance and penetrate the signature, and simultaneously the looper (3 isthrown to the right, so that the parts assume the position shown in Fig.9. The needles 1 and 3 are then retracted; but before they do so theloopers 6 and 7 engage the threads and move to the left and carry thethreads into the path of the hooks, which are advanced to take thethreads, as shown in Fig. 10. The loopers then release the threads andreturn to normal position, and the hooks recede and carry the threadsinto the position shown in Fig. 11, thus completing the sewing of thesignature, which is here shown in full lines. The second signature isthen fed forward into position, as shown in dotted lines, Fig. 12,whereupon it is penetrated by needles 3 and 5, the loopers moving intoposition to engage the threads, and upon the advance of the hooks theloopers move to the right and draw the threads into position to beengaged by the hooks, which then draw the threads through the signature,and as the previous loop has up to this time remained upon the neck ofthe hook the second loop is drawn through the first. The third signaturethen comes into position and is sewed by needles 1 and 3 in the mannerfirst described, and so the operation goes on until the proper number ofsignatures has been sewed, as shown, for example, in Fig. 15. It willthus be seen that succeeding signatures are sewed in diiferent places,and thus the thickness of the back of the book is much reduced, comparedwith those stitched by other machines sewing them all in the same place.The book also opens flatter and With a much better spring than any sewedby machines heretofore in use, and the sewing is much tighter, equalingin every respect the best hand-sewing, While excelling it in strength.The signatures require no cutting at the edge, and should a stitch becut or broken it Will not loosen a sheet.

Having now fully described my invention, I declare that What I claim,and desire to have secured to me by Letters Patent of the United States,is--- 1. In machines for sewing together the sheets or signatures ofbooks the combination of hooks or loopers n, sliding rods or bars 0,cross-levers q, shafts r, and actuating-levers, rods, cams, and springsdescribed, with complemental stitch-forming mechanism; substantially ashereinbefore described and shown.

2. In combination with the needles with means for alternatelyreciprocating them in sets, the hooks With means for reciprocating themonce for each reciprocation of the needles, the loopers with means forreciprocating them across the face of the needles to transfer the threadfrom each set of needles to the hooks, means for rotating the loopers toinsure their leaving the thread upon the hooks, and means for rotatingthe hooks to release the threads, substantially as described.

In Witness whereof I have hereunto signed my name in the presence of tWosubscribing Witnesses.

ISIDOR NASCI'I.

Witnesses GEO. LOXHEAD, WILLIAM NAST.

